Third-rail electric-railway system.



PATBNTBD APR 7, 190.8.

G.` KOZBSNIK.

THIRD RAlL ELEGTRlG RAILWAY SYSTEM.

APPLICATION FILED DEG. i7, 1907.

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with notches or recesses e* as shown in dotted lines in Fig. l, and o nc of which is shown in full lines in Fig. 2, and mounted in the recesses c4 0f the uprights c2 are armatures which rangelongitudinally of the rail sections and consist of end parts or blocks f2 having pins which rest in the recesses e4, and are also rovided. at the top thereof with inward y directed projections f4 to which are secured contact devices f5 preferably coniposed of carbon, and corresponding contact devices f" are secured to the bottom of the rail or rail sections b" directly over the armatures f. The contact devices f 5 beneath the sections b2 of therail are connected by a wire g, and running parallel with the rail and in cased and supported in any desired manner is a main supply wire g? which is connected with the wires g by feedv wires g'J preferably provided with switches g4. l have also shown at h one of the contact shoes carried by the car or motor and which operate in connection with the third rail, and these contact shoes are provided with magnets h2 asin the patent andA in the application liereinbefore referred to. In the form of Aconstruction shown, the contact shoe h is provided with contact rollers h3 which bear on the rail, and with said contact slice is also connected one of the side arm contact devices 7b4 which bear en the side of the rail as in the application hereinbefore referred to, but the invention described and claimed herein is not involved in the contact shoe or shoes or their connections.

It will be understood that as in the patent and application hereinbefore referred to the shoes h are energized by the current from the rail, as the car or motor moves along the track andas the slices h come in contact with the seiarate third rail sections thear- A matures f are raised or picked up and assume the position shown at the right of Fig. l, and a circuit is completed from the main-wire or conductor g2 through the contact devices f" and a, the separate sections of the third rail to t e contact shoes and the proper connections te the motor, which is not shown. lt will therefore be seen that the separate third rail sections b2 are never in circuit except when the contact shoes )t are resting there on, and said third rail sections are thus made entirely harmless and iio injury occasioned b coming in contact tl'iereivithi It wil be understood that the iiiiiroveinent herein described may be applied to third rail electric railway systems of any kind or class, and to motors of any form or construction, and in ractice any form of device suitable for ma ring contact with the third rail 'or the separate sections thereof may be employed, and while l have described each of the third rail sections as prol l l l i l l l @cairo vided with two armatures, other arrangements may be e'iiliployed if desired.

Although i have -stated that any suitable contact devices may be employed for making electrical connection with the motor and the third rail, the form of rail shown in Fig. 2 is particularly adapted for use in connection with said contact devices as shown in the patent hereinbefore referred to.

it will also be observed that the separate sections b2 of the third rail are insulated at their ends one from another as shown at i in Fig. l, and I have shown in Fig. 2, the rail or itsiseparate sections may be secured to the box-shaped. supports c by bolts which pass through the insulated material d, or the insulated material d may be poured iii-between the flanges bf and c in a liquid state and afterwards allowed to become hard and when this form of construction is adopted-the flanges b3 vand c3 and the insulating material d will be locked together by a tongue and groove construction shown at d2 in Fig. 3.

From the foregoing description it will be seen that as herein describedfthe third rail or the separate, sections thereof consists of a hollow rail composed of u per and lower parts united but insulated'fom each other, thus forming box-shaped devices in which the armatures, connecting wires etc. are placed. l

Having fully described my invention, what l claim as new and desire to secure by Letters Patent, is:

1. A third rail for electric railways consisting of separate hollow sections composed of top and bottoni portions connected but insulated one from another, the ends of the top portions of said sections being also insulated, the bottoni of the top portions of the said sections being longitudinally'thickened or extended downwardly, and provided at inter* y vals with contact devices, vertically movable armatures supported beneath said contact devices and composed of separate end inembers, and a central contact member secured thereto, and an. electrical connection for said armatures.

2. A third rail for electric railways con- Isisting of separat-e hollow sections composed of top and bottom portions connected but insulated one freni another, the end of the top portions of said sections being also insulated, the bottom of the top parts of the secu tions being longitudinally thickened or eX- tended downwardly, and provided at intervals with contact devices, vertically movable armatures supported beneath said contact devices and consisting of separate end ineinbers coi'inected by a central contact device, and an electrical connection for said armatures, said armatures being oblong in form and ranging longitudinally of the rail sections, and 'being supported in transversely ari ence of thesubscribing Witnesses this 14th ranged nprights provided with notches or dey of December, 1907.v

recesses 1n the tops thereof and said arma- T1 tures being provided With ,pins adapted to CHARLES JZSN'TK 5 Irest in said recesses. Witnesses:

In testimony that I claim the foregoing as M; E. DooDY,

my invention I have signed my name in presy C. E. MLREANY. 

